164312012 has 6 divisors (see below), whose sum is σ = 287546028. Its totient is φ = 82156004.

The previous prime is 164312011. The next prime is 164312063. The reversal of 164312012 is 210213461.

It is not an unprimeable number, because it can be changed into a prime (164312011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20538998 + ... + 20539005.

It is an arithmetic number, because the mean of its divisors is an integer number (47924338).

Almost surely, 2^164312012 is an apocalyptic number.

It is an amenable number.

164312012 is a deficient number, since it is larger than the sum of its proper divisors (123234016).

164312012 is a wasteful number, since it uses less digits than its factorization.

164312012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41078007 (or 41078005 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 164312012 is about 12818.4247082081. The cubic root of 164312012 is about 547.7172738414.

Adding to 164312012 its reverse (210213461), we get a palindrome (374525473).

The spelling of 164312012 in words is "one hundred sixty-four million, three hundred twelve thousand, twelve".